ERROR avbin.dll failed to load

I’m seeing a similar error (see below), initially in a stroop-type task I created, but then also with the stroop demo. No such error with the mental rotation demo. It’s causing the stroop tasks to end prematurely.
I’m no coder, so any lay explanation and/or solution would be highly appreciated!
Thanks
Alice

Running: C:\Users\Alice\Documents\PsychoPy-1.85.6\PsychoPy-1.85.6\psychopy\demos\builder\stroop\stroop.py

pyo version 0.8.7 (uses single precision)
39.1364 ERROR avbin.dll failed to load. Try importing psychopy.visual
as the first library (before anything that uses scipy)
and make sure that avbin is installed.
112.3559 WARNING Couldn’t measure a consistent frame rate.

  • Is your graphics card set to sync to vertical blank?
  • Are you running other processes on your computer?

112.7185 WARNING t of last frame was 30.95ms (=1/32)
112.7560 WARNING t of last frame was 37.52ms (=1/26)
112.7874 WARNING t of last frame was 31.42ms (=1/31)
112.8187 WARNING t of last frame was 31.32ms (=1/31)
112.8568 WARNING Multiple dropped frames have occurred - I’ll stop bothering you about them!
115.8622 WARNING Couldn’t measure a consistent frame rate.

  • Is your graphics card set to sync to vertical blank?
  • Are you running other processes on your computer?